A) \[{{\mu }_{k}}=1-\frac{1}{{{n}^{2}}}\]
B) \[{{\mu }_{k}}=\sqrt{1-\frac{1}{{{n}^{2}}}}\]
C) \[{{\mu }_{s}}=1-\frac{1}{{{n}^{2}}}\]
D) \[{{\mu }_{s}}=\sqrt{1-\frac{1}{{{n}^{2}}}}\]
Correct Answer: A
Solution :
The situation is shown in figure When friction is absent, ???.(i) When friction is present ...(ii) Whens From Eqs. (i) and (ii), we get or (given in question) or or or or orYou need to login to perform this action.
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